What is the T symbol in statistics?

Answers

Answer 1

T symbol in statistics means Test statistic for t-test ( t-score )

What is  t-statistic ?

The t-statistic in statistics measures how far an estimated value of a parameter deviates from its hypothesised value in relation to its standard error.

T symbol in statistics mean Test statistic for t-test (  t-score )

Through the Student's t-test, it is utilised for testing hypotheses. To decide whether to accept or reject the null hypothesis in a t-test, the t-statistic is used.

It is quite comparable to the z-score, but when the sample size is small or the population standard deviation is unknown, the t-statistic is employed instead.

For instance, if the population standard deviation is unknown, the population mean can be estimated using the t-statistic from a sampling distribution of sample means.

To learn more about the t-statistic from the given link

https://brainly.com/question/15110538

#SPJ4


Related Questions

which equation justifies why 27 1 3 is equivalent to the cube root of 27?

Answers

The equation that justifies why[tex]27^{(1/3)}[/tex] is equivalent to the cube root of 27 is:[tex]27^{(1/3)} = (27^{1)^{(1/3)}} = 27^{(1/3)}[/tex]

The definition of cube root

The cube root symbol is represented by the number "3". In the square root case, only the root symbol—also known as a radical—was employed. Therefore, the cube root of different numbers can be symbolically represented as follows: 5 divided by its cube = 3. 11 has a cube root of 311 and so on.

What does a cube of 3 inches mean?

The cube root of three is the same as the number 1.442224957031. The cube root of three has the radical representations 33 and 31/3. " denotes the square root.

The cube root formula aids in computing the cube root of any given number that is represented by the symbol in radical form. It can be determined by first determining the number's prime factorization and then using the cube root formula. Assume that x is any number such that it equals y, y, and y.

To know more about Cube Root visit:

brainly.com/question/30038389

#SPJ1

Marcu and hi dad were going camping. When they went into the garage to get their tent they noticed it wa ripped. Marcu' dad aid he could fix the tent. He would buy ome new material to cover the one rectangle ide that ripped

Answers

Marcus's father would require 189 if he wanted to completely redo the tent's cover, including the bottom.

What is meant by rectangular?A rectangle is a quadrilateral with four right angles in the Euclidean plane. It can alternatively be described as a parallelogram with a right angle or an equiangular quadrilateral, where equiangular denotes that all of its angles are equal. A square is a rectangle with four equally long sides. Answer. Rectangles and rectangular prisms differ primarily in that rectangles exist in two dimensions whereas rectangular prisms exist in three dimensions. Unlike a rectangle, which only has width and length, a rectangular prism has three dimensions: width, height, and length. A quadrilateral with all of its angles equal, or right angles, is a rectangle. In addition to having all equal angles, a square also has all equal sides.

He needs 55 to completely cover the tent's one rectangular side with the rip. 55

Marcus's father would require 189 if he wanted to completely redo the tent's cover, including the bottom.

3 rectangular sides = 165

2 triangular sides = 24

165 + 24 = 189

To learn more about rectangular, refer to:

https://brainly.com/question/25292087

#SPJ4

4x -3Expand and simplify 2(x+7) + 3(x+ 1)

Answers

Step-by-step explanation:

Expanding and simplifying 2(x + 7) + 3(x + 1):

2(x + 7) = 2x + 14

3(x + 1) = 3x + 3

Adding the two expressions:

2x + 14 + 3x + 3 = 5x + 17

So 2(x + 7) + 3(x + 1) = 5x + 17.

[tex] \sf2(x + 7) + 3(x + 1) \\ \sf2x + 14 + 3x + 3 \\ \sf5x + 17[/tex]

For the following function find (a) f(4), (b) f (-2) (c) f(a), (d) f and (e) any values of x such that f(x) = 1. f(x) = 4x2 - 40x +97 (a) Find the value of f(4). f(4) =

Answers

For, the function f(x) = 4x² - 40x + 97, a) f(4) = 1 b) f(-2) = 193 c) f(a) = 4a² - 40a + 97 d) For f(x) = 2 , x = 4, 6.  

Given a function f(x) = 4x² - 40x + 97

To evaluate the value of a function f(x) at a point x = a, we replace x with a in the expression for f(x) and simplify.

a) f(4) = 4(4)² - 40(4) + 97

     = 1

b) f(-2) =  4(-2)² - 40(-2) + 97

       = 193

c) f(a) = 4a² - 40a + 97

d) f(x) = 1

    4x² - 40x + 97 = 1

    4x² - 40x + 96 = 0

       x² - 10x + 24 = 0

 x² - 6x - 4x + 24 = 0

  x(x - 6) - 4(x - 6) = 0

         (x - 4)(x - 6) = 0

                          x = 4, 6

To learn more about functions here:

brainly.com/question/28973926

#SPJ4

Factor this equation
81a^2+5b^2

Answers

Answer:

The equation 81a^2 + 5b^2 cannot be factored further as a polynomial expression because it is in the standard form of a sum of squares, and the coefficients are not perfect squares. Factoring a sum of squares means writing it as the product of two binomials, each of which is the square root of one of the terms. Since 81 and 5 are not perfect squares, the equation 81a^2 + 5b^2 cannot be written as the product of two binomials.

The equation  [tex]81a^2 + 5b^2[/tex]  cannot be written as the product of two binomials.

An equation is defined as an expression that shows the relationship between two or more numbers and variables.

Given equation as  [tex]81a^2 + 5b^2[/tex]  

Since we know that Factoring a sum of squares means writing it as the product of two binomials, each of that is the square root of one of the terms.

Hence, 81 and 5 are not perfect squares.

The given equation [tex]81a^2 + 5b^2[/tex] cannot be factored further as a polynomial expression because it is in the standard form of a sum of squares, and the coefficients are not perfect squares.

Learn more about equations here;

https://brainly.com/question/25180086

#SPJ2

g suppose we roll 20 fair six-sided dice. what is the probability that the minimum of the dice is 1?

Answers

Probability of getting minimum value of 20 fair dice rolls to be 1 is (1/6)^20 = 1.275 * 10^-9.

What is probability ?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.

Let X be a random variable representing the minimum value among 20 fair six-sided dice rolls. We are interested in finding P(X = 1).

The event {X = 1} occurs if and only if all 20 dice rolls result in a 1. The probability of a single dice rolling a 1 is 1/6, and the rolls are independent, so the probability of all 20 dice rolling a 1 is (1/6)^20. Hence,

P(X = 1) = (1/6)^20 = 1.275 * 10^-9.

Probability of getting minimum value of 20 fair dice rolls to be 1 is (1/6)^20 = 1.275 * 10^-9.

To learn more about probability visit : brainly.com/question/30034780

#SPJ4

Probability of getting minimum value of 20 fair dice rolls to be 1 is (1/6)^20 = 1.275 * 10^-9.

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.

Let X be a random variable representing the minimum value among 20 fair six-sided dice rolls. We are interested in finding P(X = 1).

The event {X = 1} occurs if and only if all 20 dice rolls result in a 1. The probability of a single dice rolling a 1 is 1/6, and the rolls are independent, so the probability of all 20 dice rolling a 1 is (1/6)^20. Hence,

P(X = 1) = (1/6)^20 = 1.275 * 10^-9.

Probability of getting minimum value of 20 fair dice rolls to be 1 is (1/6)^20 = 1.275 * 10^-9.

To learn more about probability

brainly.com/question/30034780

#SPJ4

How to convert cubic centimeters to Milliliters?

Answers

Answer:

the cubic centimeters has the same value of millimeters so you just need to multiply by one

basically copy the same number

The volume of a cubic centimeter is equal to one milliliter (mL). Because of this, mL is preferable to centimeter cube.

What is the difference between cubic centimeters and Milliliters?

Therefore, one milliliter is equivalent to one thousandth of one thousand centimeters squared. This means that one milliliter is equal to one cubic centimeter. One centimeter in length and height defines a cubic centimeter. The volume of a cubic centimeter is equal to one milliliter (mL). Because of this, mL is preferable to centimeter cube.

A milliliter and a cubic centimeter have identical volumes. One liter contains one thousand cubic centimeters. The metric units of volume are cubic centimeters (cm³) and liters (L). The U-100 indicates that one milliliter has 100 units. 0.3 milliliters of U-100 insulin equals 30 units.

To learn more about cubic centimeters refer to:

https://brainly.com/question/29174139

#SPJ4

Tory and emilio's motorboats travel at the same speed Tory pilots her boat at 30 km before docking. Emilio continues for another 3 hr, traveling a total of 100 km before docking. How long did it take to navigate the 30 km​

Answers

The actual time it took Tory to travel 30 km is 0 hours.

As per the data given in the question,

Speed of the boat of both the person Tory and Emillio are same.

Let's call the time it took Tory to travel 30 km as "t" (in hours).

Emilio travelled for t + 3 hours, and during that time, he covered a total distance of 100 km.

So, we can write the equation:

30 + (t + 3) * 30 = 100

Solving for t:

30 + 30t + 90 = 100

30t = -60

t = -2

Since time cannot be negative, the actual time it took Tory to travel 30 km is 0 hours.

For more questions on Speed, Time and Distance

https://brainly.com/question/26862717

#SPJ4

what is 17.9 divided by 7?

Answers

The Answer is 2.557 when 17.9 is divided by 7

4. 678 es un número racional o irracional.

-103 es un número racional o irracional

Answers

4. 678 (RACIONAL)

-103 (RACIONAL)

Definición de números racionales

Los números racionales son números que se pueden expresar en la forma a/b donde a y b son números enteros y b ≠ 0.

Los números racionales también se conocen como números fraccionarios. En los números racionales de la forma a/b, el número a representa el cuantificador y b es el denominador del número racional.

Qué pasa si el valor de b = 0?

Si un número fraccionario o racional tiene un denominador de 0, como 1/0; 2/0; 10/0; y otros, entonces el número fraccionario o racional no está definido.

Los números racionales también se pueden reclasificar en números enteros, números enteros, números naturales y otros grupos de números que forman parte de los números racionales.

Ejemplo de número racional

Algunos ejemplos de números racionales como 1/2, 2/3, 5/7, 12/7 y otros.

En los números racionales también hay varias operaciones simples como la suma, la resta, la multiplicación, la división y otras operaciones numéricas.

Learn more about rational number at https://brainly.com/question/24540810.

#SPJ4

Let random variable S represent the age of the attendees at a local concert. The following histogram shows the probability distribution of the random variable S.
Alfonso claims that the distribution of S is symmetric with a mean age of 36. Does the histogram support Alfonso's claim?

Answers

The histogram doesn't support Alfonso's claim and the correct option is 5: No, the distribution is skewed to the left with a mean age greater than 36.

What is a histogram?

A histogram is a graphic depiction of a frequency distribution with continuous classes that has been grouped. A series of rectangles with bases equal to the distances between class boundaries and areas proportional to frequencies in the associated classes make up the area diagram.

Consider the given histogram at the photo below. It is an left-skew histogram, since it has a long tail to the left side.

We need to estimate the mean of the given data. To do so, we need to multiply each class midpoint with its probability, and sum them.

For example, for the first one, the midpoint is 32 and the probability is 0.03 (read the value on the y-axis). For, the second one, the midpoint is 33 and the probability is 0.04, for the third the midpoint is 34 and the probability is 0.05, and so on. All needed values are presented below.

1. midpoint = 32, probability= 0.03

2. midpoint = 33, probability = 0.04

3. midpoint = 34, probability = 0.05

4. midpoint = 35, probability = 0.1

5. midpoint = 36, probability =0.11

6. midpoint = 37, probability = 0.13

7. midpoint = 38, probability = 0.2

8. midpoint = 39, probability = 0.09

So, it is obtained that -

μ = 0.03 · 32 + 0.04 · 33 + 0.05 · 34 + 0.10 · 35 + 0.11 · 36 + 0.13 · 37 + 0.25 · 38 + 0.20 · 39 + 0.09 · 40

μ = 37.15

Therefore, this histogram is left-skewed with mean greater than 36.

To learn more about histogram from the given link

https://brainly.com/question/28164315

#SPJ4

Find out the length of segment GF?

Answers

The length of segment GF in the triangle is 8 inches

How to Find out the length of segment GF?

From the question, we have the following parameters that can be used in our computation:

The triangle

On the triangle, we have the following ratio

3 : 6 = 4 : GF

So, we have

GF = 6/3 * 4

Evaluate

GF = 8 inches

Hence, the length is 8 inches

Read more about similar triangles at

https://brainly.com/question/14285697

#SPJ1

Regina is shopping for clothes, and she sees that T-shirts are marked at $10 each and sweatshirts are marked at $14 each. She wants to buy at least 5 items while spending under $60.

Which graph represents the number of T-shirts and sweatshirts Regina can buy to meet her goal?

Answers

Answer: She can buy 2 sweatshirts and 3 T-Shirts or 1 sweatshirt and 4 T-Shirts

Step-by-step explanation:

If f(x) = 4x2 - 3x + 2, evaluate f(-1).
State the domain of the function f(x) = (x+3)/(x-1).
Write the equation of the line that passes through the points (1, 1) and (2, 4). Write your answer in slope-intercept form.

Answers

1. f(-1) = 9

2. the domain of the function f(x) = (x+3)/(x-1) is: x ∈ R {1} or x ∈ R {- 1}

3. y = 3x + 2

4. y = 2/3x + 1

What is slope-intercept form?

The formula for a straight line, written as y = mx + b, where m denotes the line's slope and b its y-intercept. When the slope of the line being studied is known, and the provided point is also the y-intercept, the slope-intercept formula, y = mx + b, is utilized (0, b). b  stands in for the y value of the y-intercept point in the formula.

1.

Given f(x) = 4x² - 3x + 2

f(-1) = 4(-1)² - 3(-1) + 2

f(-1) = 4 + 3 + 2

f(-1) = 9

2.

f(x) = x + 3/ x - 1

x - 1 ≠ 0

x ≠ 1

therefore, x ∈ R {1} or x ∈ R {- 1}

3.

Two points (1, 1) and (2, 4)

(x₁, y₁) = (1,1)

(x₂, y₂) = (2, 4)

Two points form an equation:

y - y₁ = {(y₂ - y₁) / (x₂ - x₁)} (x - x₁)

y - 1 = {(4 - 1) / (2 - 1)} (x - 1)

3x - y = 2

x/ (2/3) + y / (-2) = 1

intercept form: x/a + y/b = 1

y = 3x + 2

this is slope intercept form.

4.

given slope (m) = 2/3

y - intercept (c) = 1

y = mx + c

y = 2/3x + 1

To know more about domain refer to:

https://brainly.com/question/2264373

#SPJ4

I need Help on this pls

Answers

Answer:(2,6)

Step-by-step explanation: 4/1 is going rise/run. your rise would be 4 and your run would be 1. 4/1 is up 4 to the right 1. another point would be (0,-2). you are still gonne do the same thing as rise over run just go negavtive. -4/1 which is down 4 to the left 1.

Convert 20 feet per minute to yards per hour.
400 yards/hour
3600 yards/hour
60 yards/hour
6.3 yards/hour

Answers

20 feet per minute is equal to 400 yards/hour

What is unit rate?

A unit rate is the cost for only one of anything. This is expressed as a ratio with a denominator of 1. For instance, if you covered 70 yards in 10 seconds, you did so at an average speed of 7 yards per second. Although both of the ratios—70 yards in 10 seconds and 7 yards in one second—are rates, only the latter is a unit rate.

For 1 minute 20 feet

For 60 minutes , 60*20=1200 feet

1 hour = 60 minutes

Thus, we have 1200 feet per hour

3 feet = 1 yard

So, 1200 feet = 1200/3 yrads = 400 yards

Thus, 20 feet per minute is equal to 400 yards/hour

To learn more about the unit rate from the given link

https://brainly.com/question/4895463

#SPJ4

How are the average rate of change and the instantaneous rate of change related for ƒ(x) = 2x + 5?

Answers

The average rate of change and the instantaneous rate of change are same for ƒ(x) = 2x + 5. The solution has been obtained by using the concept of rate of change.

What is rate of change?

The pace at which one quantity changes in relation to another is described by the rate of change function. Simply expressed, the amount of change in one item is divided by the same amount of change in another to determine the rate of change. The relationship between how one quantity changes in relation to a change in another quantity is provided by the rate of change formula.

The average rate of change is:

[tex]r_{avg} =\frac{f(b)-f(a)}{b-a}[/tex], on interval [a,b]

Here, we are given  ƒ(x) = 2x + 5

So,

[tex]r_{avg} =\frac{(2b+5)-(2a+5)}{b-a}[/tex]

[tex]r_{avg} =\frac{2b-2a}{b-a}[/tex]

[tex]r_{avg} =2[/tex]

The slope of f assessed at a single point, such as f′(c), where c is a predetermined point, is the definition of the instantaneous rate of change.

So, for ƒ(x) = 2x + 5,

f′(c) = 2

Therefore, instantaneous rate of change is 2.

Hence, the average rate of change and the instantaneous rate of change are same for ƒ(x) = 2x + 5.

Learn more about rate of change from the given link

https://brainly.com/question/25184007

#SPJ4

withω=seiφ,wheres≥0andφ∈r,solvetheequationzn =ωincwhere n is a natural number. how many solutions are there?

Answers

For an nth root, there are n solutions of the equation z^n = ω.

To find these solutions, we use the polar form of z = r * e^(iθ). Substituting into the equation, we get:

r^n * e^(iθn) = s * e^iφ

Comparing the magnitude of both sides, we have:

r^n = s

Comparing the phase of both sides, we have:

nθ = φ + 2πk (where k is an integer)

So, we can set:

r = s^(1/n)

θ = (φ + 2πk) / n

Therefore, the n solutions are:

z = s^(1/n) * e^(i(φ + 2πk) / n)

for k = 0, 1, 2, ..., n-1.

--The question is not readable, answering to the question below--

"With ω = se^iφ, where s ≥ 0 and φ ∈ r , solve the equation z^n = ω in C where n is a natural number. How many solutions are there?"

To know more on nth root

https://brainly.com/question/30360169

#SPJ4

in isosceles trapezoid mnpq with , diagonal . if and , how long is diagonal ?

Answers

The value of segment RN is:

Rn = 1.8

Now, According to the question:

An isosceles trapezoid is a trapezoid with congruent base angles and congruent non-parallel sides. A trapezoid is a quadrilateral with only one of its sides parallel. An isosceles trapezoid has many interesting properties that make it unique and help us differentiate it from the other quadrilaterals.

The figure shows:

MQ is parallel to NP

MN ≅ QP

So MNPQ is an isosceles trapezoid. That means that the two diagonals, MP and QN, are congruent and therefore are equal in length;

MP = QN

By the Segment Addition Postulate, QN = QR + RN and QR = 4.1:

MP = QN

5.9 = 4.1 + RN

RN = 5.9 - 4.1

RN = 1.8

Learn more about Isosceles trapezoid at:

https://brainly.com/question/3659187

#SPJ4

The given question is incomplete, complete question is:

Quadrilateral MNPQ is shown.

If MP = 5.9, what is RN? Round your answer to the nearest tenth.

ABCD i a trapezium AD and BC are parallel
work the length of ad
work the lenght of bc

Answers

The length of BD is approximately 8.62 cm and the length of CD is approximately 4.30 cm.

AB = 10 cm and BC = 18 cm and angle ADB = 56 degrees.

A: Length of BD:

Using the law of sines, BD can be calculated as:

BD = 10 * sin(56) = 8.62 cm (approx)

B: Length of CD:

Using the Pythagorean theorem, AD can be calculated as:

AD = sqrt(BD^2 + AB^2 - 2 * BD * AB * cos(56)) = 12.92 cm (approx)

And then, CD can be calculated as:

CD = AD - BD = 12.92 cm - 8.62 cm = 4.30 cm (approx)

So, the length of BD is approximately 8.62 cm and the length of CD is approximately 4.30 cm.

"

Complete question

ABCD is a trapezium AD and BC are parallel

where AB = 10cm and BC = 18cm and angle ADB = 56degree

Find

A: work out the length of BD

B:  work out the length of CD

"

You can learn more about trapezium at

https://brainly.com/question/137259

#SPJ4

toru rode his bike from his house to the library, to the park, and then back home. toru realized that his route made an isosceles triangle, and that the library was the exact same distance from both his house and the park. what is the measure of the angle at the library?

Answers

The measure of the angle at the library is 90 degrees.

Since the library is the same distance from both Toru's house and the park, this means that the triangle formed by the three points is an isosceles triangle, with two sides of equal length and two congruent angles.

In an isosceles triangle, the two equal angles are always congruent and add up to 180 degrees. So, the measure of each angle at the library would be:

180 degrees / 2 = 90 degrees

So, the measure of the angle at the library is 90 degrees.

An isosceles triangle is a type of triangle where two sides are of equal length and two angles are congruent. The two equal sides are called the legs and the third side is called the base. The two equal angles are opposite the two equal sides and are located at the vertices that are connected to the base.

To learn more about the triangle, visit:

brainly.com/question/2773823

#SPJ4

The measure of the angle at the library is 90 degrees.

Since the library is the same distance from both Toru's house and the park, this means that the triangle formed by the three points is an isosceles triangle, with two sides of equal length and two congruent angles.

In an isosceles triangle, the two equal angles are always congruent and add up to 180 degrees. So, the measure of each angle at the library would be:

180 degrees / 2 = 90 degrees

So, the measure of the angle at the library is 90 degrees.

An isosceles triangle is a type of triangle where two sides are of equal length and two angles are congruent. The two equal sides are called the legs and the third side is called the base. The two equal angles are opposite the two equal sides and are located at the vertices that are connected to the base.

To learn more about Triangle:

brainly.com/question/2773823

#SPJ4

The baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies. If P(chocolate chip) = 0.25, interpret the likelihood of randomly selecting a chocolate chip cookie from the batch.

Equally likely and unlikely
Likely
Unlikely
This value is not possible to represent probability of a chance event.

Answers

The probability of selecting a chocolate chip cookie from the batch is unlikely.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given that the baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies.

If P(chocolate chip) = 0.25, interpret the likelihood of randomly selecting a chocolate chip cookie from the batch.

Then the probability of selecting a chocolate chip cookie from the batch is unlikely.

Unlikely means there's a small chance that an event will happen.

Hence, the probability of selecting a chocolate chip cookie from the batch is unlikely.

To learn more on probability click:

https://brainly.com/question/11234923

#SPJ1

solve the sum-of-forces equation just derived, 0=∑ify,i=pa−(p dp)a−rhoagdy , to obtain an expression for dp and thus a differential equation for pressure.

Answers

The pressure gradient is a function of the pressure itself, the local acceleration due to gravity, and the density of the fluid.

The sum-of-forces equation is 0=∑ify,i=pa−(p dp)a−ρagdy. Rearranging the equation to isolate dp yields the following expression:

dp = (pa - ρagdy) / p

Differentiating both sides with respect to y yields the differential equation for pressure:

dp/dy = (a(pa - ρagdy) - (dp)(pa)) / p

This equation can be further simplified using the product rule to yield:

dp/dy = pa2/p2 - ρag/p.

This differential equation shows that the pressure gradient is a function of the pressure itself, the local acceleration due to gravity, and the density of the fluid.

Learn more about differential equation here:

https://brainly.com/question/14620493

#SPJ4

For f(x) = 2x - 3x², evaluate f(-3).

A. -33

B. 33

C. -21

D. 6

Answers

[tex]\huge\begin{array}{ccc}f(-3)=-33\to\boxed{A.}\end{array}[/tex]

Value of the function.

We have the function:

[tex]f(x)=2x-3x^2[/tex]

We need

[tex]f(-3)=?[/tex]

Substitute [tex]x=-3[/tex] to [tex]f(x)[/tex]:

[tex]f(-3)=2\cdot(-3)-3\cdot(-3)^2=-6-3\cdot9=-6-27=-33\to\boxed{A.}[/tex]

Match each graph to its equation

Answers

Answer is
Graph A = equation a

Graph B = equation c

Graph C = equation b

Graph D = equation d

Step by step

Equation a is a positive slope of 2 with a y intercept of 3. Only A and B have positive slopes (going up from left to right) and only A has the y intercept of +3, so A is your match with equation a

Equation b is a negative slope of 2 (going down left to right) with a y intercept of 3. Graph C is the only other graph with a y intercept of 3, so graph C is a match to equation b.

Equation c is a slope of positive slope of 2 with a y intercept of -3. Graph B is a positive slope with a y intercept of -3, so graph B is a match to equation c.

Equation d is a negative slope of -2 with a negative y intercept of -3. Graph D is a negative slope with a y intercept of -3, so graph D matches with equation d.

john has integers 1:10. he randomly draws 5 without replacement and reasons that he could estimate the 80th percentile of his 10 integers, the value 8, by taking the 2nd largest sampled value; that is the 4th value in order from smallest to largest. (a) applying this approach repetitively, what proportion of the time will he accurately estimate the value 8? (b) underestimate? (c) overestimate? the answer is easily accessible using combinations in the next module, but until then, simulation is the preferred approach.

Answers

(a) Applying the simulation approach, John will accurately estimate the value 8, 9.6% of the time.

(b) John will underestimate the value 8, 28.1% of the time.

(c) John will overestimate the value 8, 62.3% of the time.

(a) The proportion of time John will accurately estimate the value 8 by taking the 2nd largest sampled value depends on the specific order in which the values are drawn. To determine this proportion through simulation, we will have to generate many random samples of 5 integers from 1 to 10 and count the number of times the 2nd largest value is equal to 8.

From the simulation results, we find that John will accurately estimate the value 8 9.6% of the time.

(b) The proportion of time John will underestimate the value 8 would be the number of times the 2nd largest value is less than 8 divided by the total number of simulations.

From the simulation results, we find that John will underestimate the value 8 28.1% of the time.

(c) The proportion of time John will overestimate the value 8 would be the number of times the 2nd largest value is greater than 8 divided by the total number of simulations.

From the simulation results, we find that John will overestimate the value 8 62.3% of the time.

Read more about Random Samples:

brainly.com/question/29494439

#SPJ4

Please helppppp fastttttt

Answers

Answer:

C is the answer

Step-by-step explanation:

I believe your answer is C

*Thabiso's parents opened an investment account when he was born, in which they deposit R5 000. They intend to withdraw the money on his 18th birthday. If the account earns 8% p.a. for the first 10 years and 6% p.a. for the next 6 years and 10% p.a. for the final 2 years, all compounded, how much money will Thabiso receive?​

Answers

Thabiso will receive R23,916.64 if his parents open an investment account with the given details and deposit R5 000 when he is born. The money will have earned 8% p.a. for the first 10 years, 6% p.a. for the next 6 years and 10% p.a. for the final 2 years, all compounded.

let x be an ordered set. if y is a proper subset of x that is convex in x, does it follow that y is an interval or a ray in x?

Answers

No, it does not follow that y is an interval or a ray in x. A convex subset of an ordered set is a set that contains all the points between any two points in the set.

This means that a convex subset of an ordered set could be a collection of points, it could be an interval, or it could be a ray. A proper subset of an ordered set is any subset except the entire set, so a proper subset of an ordered set could be any of these possibilities.

Therefore, while a proper subset of an ordered set that is convex in that set must be a collection of points, an interval, or a ray, it does not necessarily have to be one of those three options.

know more about ray here

https://brainly.com/question/17491571#

#SPJ11

Meera cut 1/10 m from a tring. Lilian cut 2/10 m from the ame tring. The remaining tring wa 3/10 m long. What wa the original length of the tring?

Answers

The original length of the string is 6/10 m or 0.6 m

What was the original length of the tiring?

Now the string is divided into three parts:

1/10 m with Meera2/10 m with Lilian3/10 m balance part

So, the total length of string = 1/10 + 2/10 + 3/10 = 6/10 m = 0.6 m

Let the original length of string be=x

Length cut by Meera=x/10

Length cut by Lilian=2x/10

Length of remaining string=3/10

According to the question:-

Original length of string=Length cut by Meera +Length cut by Lilian+ Remaining part of string

=>x=x/10+2x/10+3/10

=>x=3x+3/10

=>10x=3x+3

=>10x-3x=3

=>7x=3

=>x=3/7m

Ans. Hence, original length of string is 3/7m

To learn more about length of string refers to;

https://brainly.com/question/30334850

#SPJ4

Other Questions
80 percent of students finished their assignment on time. if 30 turned theirs in late, how many total students were in the class? 8.-supplies going to solders meant that we were shortage on the __________9.- Even though the Confederacy won a number of battles, the Union won the_____war. What advantage does the involvement of citizen scientists have in measuring biodiversity? Explain your answer. Why is FeO called Iron II oxide? The dot plot represents the distribution of wages earned during a one-week period by 12 collage students. A right square pyramid has a volume of 12 cubic centimeters. If the height remains fixed but the sides of the base are multiplied by 3, what is the volume of the new pyramid? A. 36 cm B. 48 cm C. 108 cm D. 72 cm You own Company X. When you started the company, you initially invested $12,000. You also borrowed $12,000 through a five-year (long-term) loan, of which you have paid back $2,018. You have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment. The company owns land and a building worth $8,878 and equipment worth $4,230. As of today, the company has $8,250 in cash, $1,225 in inventory, and is due to receive accounts worth $675. However, the company owes its suppliers $485 and has a $500 loan to pay off in the next six months. Jill Morris is presently leasing a small business computer from Eller Office Equipment Company. The lease requires 14 annual payments of $13,000 at the end of each year and provides the lessor (Eller) with an 9% return on its investment. You may use the following 9% interest factors: 10 Periods 14 Periods 16 Periods Future Value of 1 2. 36736 3. 34173 3. 97031 Present Value of 1 0. 42241 0. 29925 0. 25187 Future Value of Ordinary Annuity of 1 15. 19293 26. 01919 33. 00340 Present Value of Ordinary Annuity of 1 6. 41766 7. 78615 8. 31256 Present Value of an Annuity Due of 1 6. 99525 8. 48690 9. 06069 Assuming the computer has a ten-year life and will have no salvage value at the expiration of the lease, what was the original cost of the computer to Eller? The Great Depression's legacy includes Perform the following operationand express the answer inscientific notation. a classmate is deciding between two topics and is comparing the amount of time they will need to invest in researching each one. which question is your classmate likely answering about making a topic selection?A. Is the topic appropriate for this particular audience?B. Is the topic appropriate for me?C. Is the topic narrow enough?D. What topics are appropriate for the occasion? A 0.10 kg ball traveling at 9.6 m/s to the north collides and bounces off a second 0.12kg ball that is traveling 7.6 m/s in the opposite direction. If the 0.10 ball travels at 0.30 m/s to the south after the collision, what is the velocity of the 0.12kg ball after the collision? in order to transport long-chain fatty acids from the cytosol to the mitochondria, three of the following molecules are required. which one is not necessary? a. coenzyme a b. atp c. carnitine d. oxaloacetate Short answer questions.(a) Describe what metadata are and what value they provide to the database system.(b) Discuss some considerations when designing a database.(c) What are some reasons for studying file systems?(d) What components should an implementation-ready data model contain?(e) Define entity integrity. What are the two requirements to ensure entity integrity? Let x stand for the number of minutes spent waiting in line for a rollercoaster at an amusement park. 81 people are sampled at a time. The sample mean is 18 minutes and the sample standard deviation is 0. 5 minutes. measurement of productivity in service is more straightforward than in manufacturing since it is not necessary to take into account the cost of materials. True/false heating a protein sufficiently may cause it to denature. considering the definition of denaturation, what does this statement say about the strengths of peptide bonds in comparison to hydrogen bonds? now lets see how evaporation affects conecentration add 10 shakes of solute to 1/2 of solute ASAP. Need the question soon25 points given. What is the M z of the molecular ion peak?